Carnivale

Cult TV series Carnivale is movie-like in its complexity and attention to detail: you need to watch every episode in order to have any idea what's going on, and even then there are mysteries. But it's hugely rewarding if you pay attention.

Here is the Season 1 trailer (try and ignore the Spanish subtitles!):



And here are the award-winning opening credits:



Amazon has a good deal on box sets of the whole series. Click here to see them.